Correlation between the chemical composition of V/sub 2/O/sub 5/-based melts, the desorption of oxygen, and the catalytic activity
Journal Article
·
· Kinet. Catal. (Engl. Transl.); (United States)
OSTI ID:7129218
This paper presents a correlation between the chemical composition, specific oxygen chemisorption, and catalytic activity with respect to the oxidation of ethanol for the catalyst melts (CM) KV03-V/sub 2/O/sub 5/ (A), KVO/sub 3/-V/sub 2/ /SUP O/ /sub 5/-MoO/sub 3/ (B), and KVO/sub 3/-V/sub 2/O/sub 5/-M /SUB x/ O /SUB y/ (C) at 673-873 K. The causes of the correlation are discussed on the basis of similarities in the structure of solid and liquid oxide composites containing V/sub 2/O/sub 5/. It is suggested that the oxidative activity of the CM of system A is determined by the presence of the bronze KV/sub 4/O (10.5-x), that of the CM of system B by bronzes of the type 3K/sub 2/O.5V20(5-x).Y MoO/sub 3/ (where y = 1, 2, 4). Oxides modify the CM mainly by changing the bonding energy of oxygen chemisorbed by the catalyst. The effect of a transit across the melting point on the catalytic activity of the CM was studied.
- Research Organization:
- Institute of Continuum Mechanics, Urals Sci-Res. Center, Acad, of Sci., Perm
- OSTI ID:
- 7129218
- Journal Information:
- Kinet. Catal. (Engl. Transl.); (United States), Journal Name: Kinet. Catal. (Engl. Transl.); (United States) Vol. 26:2,PT.1; ISSN KICAA
- Country of Publication:
- United States
- Language:
- English
Similar Records
Interaction of refractory inorganic materials with a KVO/sub 3/-V/sub 2/O/sub 5/ melt
Working mechanism of oxide catalysts in the partial oxidation of methane to formaldehyde. II. Redox properties and reactivity of SiO{sub 2}, MoO{sub 3}/SiO{sub 2}, V{sub 2}O{sub 5}/SiO{sub 2}, TiO{sub 2}, and V{sub 2}O{sub 5}/TiO{sub 2} systems
Surface active sites of V sub 2 O sub 5 -MoO sub 3 catalysts
Journal Article
·
Tue May 20 00:00:00 EDT 1986
· J. Appl. Chem. USSR (Engl. Transl.); (United States)
·
OSTI ID:6338462
Working mechanism of oxide catalysts in the partial oxidation of methane to formaldehyde. II. Redox properties and reactivity of SiO{sub 2}, MoO{sub 3}/SiO{sub 2}, V{sub 2}O{sub 5}/SiO{sub 2}, TiO{sub 2}, and V{sub 2}O{sub 5}/TiO{sub 2} systems
Journal Article
·
Mon Mar 31 23:00:00 EST 1997
· Journal of Catalysis
·
OSTI ID:563500
Surface active sites of V sub 2 O sub 5 -MoO sub 3 catalysts
Journal Article
·
Wed Feb 22 23:00:00 EST 1989
· Journal of Physical Chemistry; (USA)
·
OSTI ID:5145475
Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALCOHOLS
ALKALI METAL COMPOUNDS
BINDING ENERGY
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CORRELATIONS
DESORPTION
ELEMENTS
ENERGY
ETHANOL
HYDROXY COMPOUNDS
KINETICS
MOLYBDENUM COMPOUNDS
MOLYBDENUM OXIDES
NONMETALS
ORGANIC COMPOUNDS
OXIDATION
OXIDES
OXYGEN
OXYGEN COMPOUNDS
POTASSIUM COMPOUNDS
REACTION KINETICS
REFRACTORY METAL COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
VANADATES
VANADIUM COMPOUNDS
VANADIUM OXIDES
400201* -- Chemical & Physicochemical Properties
ALCOHOLS
ALKALI METAL COMPOUNDS
BINDING ENERGY
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CORRELATIONS
DESORPTION
ELEMENTS
ENERGY
ETHANOL
HYDROXY COMPOUNDS
KINETICS
MOLYBDENUM COMPOUNDS
MOLYBDENUM OXIDES
NONMETALS
ORGANIC COMPOUNDS
OXIDATION
OXIDES
OXYGEN
OXYGEN COMPOUNDS
POTASSIUM COMPOUNDS
REACTION KINETICS
REFRACTORY METAL COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
VANADATES
VANADIUM COMPOUNDS
VANADIUM OXIDES